Denon 1910 + Polk RM705 + Polk M10?

I would think that the Polk RM 6751 would be a better match or the R150, a lot depends on your room size and configuration, I would just experiment and see what sounds right to you... just guessing right left front might be good cause those speakers are larger and can handle more power...a lot depend on how well they interface with your center channel...